Regulator.



W. M. MILLER & S. A. SHIPP. REGULATOR.

AP1LIGATION FILED MAY 2, 1912.

Patented 0013.7, 1913.

2 SHEETS-SHEET l,

c-o---a-z ,7

w//l/l//W fmm l W. M. MILLER & S. A. SHIPP.

REGULATOR.

APPLICATION FILED MAM, 1912.

Patented Oct. 7, 1913.

2 SHEETS-SHEET 2.

mmm fwn-m 1mm `irrr sara rra-nr WILLIAM: TEILES MILLER AND SWAN ALBERT SHIP?, LOS ANGELES, CALIFORNA.

REGULATR.

Leraars.

- zens of the United States of America, both residing at Los Angeles, in `the county of Los Angeles, State of California, have invented a certain new and useful Regulator; and we do hereby declare ythe followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to an improved regulator, which, although it and portions therepf are adapted 'to be used in other relations, 1s more particularly -designed to be used for controlling and regulating thefeed of liquid fuel and steam from a boiler to a burner in the firebox for the boiler.

One object of the invention is to provide a novel and improved construction for the regulator whereby it is rendered highly sensitive in its action and operation.

Another object of the invention is to provide a novel and improved regulator which in use is adapted to control and regulate the feed of the fuel oil and'steamfto the burner in such proportions and amounts as are sufficient'to produce heatin such amounts and degrees as will keep the desired pressure of the steam in the boiler substantially constant.

Another object of the invention is to provide an improved construction whereby the frictional cont-act of the piston-valve with the cylinder is reduced to a minimum.

Another object of thel invention is to provide an improved construction whereby the passageways through the piston-vallve andl the cylinder may be adjusted angularly as well as longitudinally with respect to each other.

Another object of the invention is to provide an improved construction whereby the parts of the regulator may be readily set to have it act effectively when it is desired to feed to thc burner any one of the different grades of `l'iuel oil.

.Further objectsof the invention are to provide a regulator which is simple and compact in character, unitary and self-contained, cheaply and easily installed,economi cal and durable in use, effective in action, and in which the parts may be readily assembled or demounted.

Other objects and the advantages 0f the Specification of Letters Patent.

Patented Oct. '7, 1913.

Application filed May 2, 1912. Serial No. 694,743.

invention will be apparent to those skilled in the art from a consideration of the following description of the preferred form of construction embodying the invention and illustrated on the accompanying drawings, in which,

lFigure 1 is an elevational view of the improved regulator together with portions of the pipes connected thereto; Fig. 2 is a central sectional View of the regulator taken on the line 4-7-47 of Fig. y3; Fig. 3 is a plan vie-w of the regulator; Fig. 4 is an elevation view of a portion of the internal parts of the regulator, the piston-valves being removed from their associated parts to facilitate illustration; and Fig. 5 is a view'taken on the line 5 5 of Fig. 4i.

Between the upper or steam casing 2 and the lower or oil casing 1 is placed a flexible separating diaphragm 22; the steam and oil casings with the diaphragm between them being held firmly together by the Screws 20. In the oil casing 1 is formed an inlet orifice 34 and an outlet orifice 35, and in the steam casing 2 the inlet orice 19 and outlet orifice 21 are formed.

In the center of the diaphragm 22 is mounted. the bolt 3 which is secured positively to said diaphragm by the set nuts 4 and 5 which latter are preferably formed to provide rounded surfaces adjacent to the diaphragm. The upper end of the bolt 3 terminates in an upwardly extending rod or stem 9 on which the hollow piston-valve 6 is mountedv and which stem fits in a ball bearing 9 in the recess 9 in the upper part ofthe cylinder 13. ln the bottom part of ythe bolt 3 is formed in combination with the cap 3l thereon a ball socket adapted to receive the ball 11 on the end of the stem 11.

The piston-valve 6 is formed to provide two oppositely disposed recesses or passageways 4:5 and it is flexibly mounted on the stem 9 and has a sliding lit within the cylinder 13 which latter is provided with ports 24 disposed in proper relation to the upper edges of the said passageways 45`of the piston-valve 6. The flexible mounting of the piston-valve 6 upon the stem 9 is accomplished by means of'the short pin 8 arranged in the upper end of said stem and having a close fit to permit rotary and sliding movement in said stem, and the smaller pin 7 which passes at right angles through the piston-valve 6 and st em andthrough an enlarged opening 7 1n said stem; the stem 9 passing through an enlarged longitudinal opening 9 in the piston-valve 6.

The cylinder 13 which surrounds the isto-n-valve 6 has an upwardly exten ing shank 13 which passes up through the internally threaded hub 17 of the hand-wheel 17, said hand-wheel being rotatively carried in the yoke 23 and prevented from rising out of its bearing in that yoke by the set collar 14.` The yoke 23 is secured to the top of the steam casing 2 by the screws 16. Upon the threadedshank 13 of the cylinder 13 is also fixed the hand lever 15, the use of which will be explained hereinafter.

Surrounding the adjustable cylinder 13 is the steam packin 18 bearing upon which is the packing glan 10 and above this gland 10 is another ring of packing 12 bearing upon which, in turn, is the pack 'nut 44 which screws intoy the top of the steam caslng 2.

The cylinder 28 in the casing 1 is suspended from the lower end of the stem 11 and surrounds the hollow piston 29; its lower edge reaching down to a position adn jacent to the ports 30 at the upper end of said hollow piston.

The piston 29 is screwed into the fitting 33 and has a stem 27 screwed to its upper end which stem extends downwardly and out through the end of the fitting33 and has a hand-wheel 43 aiiixed to its lower end. The fit-ting 33 is rotatively mounted in the bottom portion of the oil casing l and it is provided with a downwardly extending part 33 passing out through the bottom end of the oil casing 1 and having a threaded end portion upon which is set the handwheel 39 by the set nut 40. The sleeve 32 is screwably mounted on a left hand outside thread on the upper portion of the fitting 33.

The set nut 5 forms the cap for the upper end of the spring 25, the lower end of 'said spring being carried by the sleeve 32 and bearing against a collar 32 thereon.

The pack nut 41 which is. screwed upon the lower end of the fitting 33, to ether with its packing 42, is to prevent oil eakage between part 33 and the stem 27. The pack nut 37, together with its packing 38 carried on the threaded lower extremity of the oil casing 1, is to prevent oil leakage between the part 33 and the lower end portion of casing 1. l

In operation, the discharge orifices 21 and 35 being lconnected to the steam and oil pipes 21 and 35 leading to the furnace burner .(not shown) and the steam inlet orice 19 being connected to pipe 19 leading from a bo1ler (not shown) and the oil inlet orifice 34 being connected to ipe 34 leading from a source (not shown of oil supply under suitable pressure, the handwheel 39 may then be turned tothe right and the tension of the spring 25 thereby made sufficient to balance the pressure of the steam on the diaphragm 22 in the steamcasing 2. lhe cylinder 13 is then raised or lowered, as required, by manipulating the hand-wheel 17 so that a proper amount of steam may pass yby the piston-valve 6, through the ports 24 of the cylinder 13, thence through the holes 51 in the gland 10 and into the channel 24 and discharge i orifice 21 to pipe 21 leading to the burner. The direction of flow of steam through the regulator is indicated by the arrows from 19 to 2l. By turning the hand-wheel 43 to the right or left, as required, 'a proper port opening is obtained under the edge of the cylinder'- 28 to admit of the passage of a proper amount of fuel voil through the ports 30, which, together with the steam discharged from the steam orifice 21 passes to the burner. The direction of flow of oil through the-regulator is indicated by the ar rows from 34 to 35; the fitting 33 having a circle of holes 36 which permit the oil from the inlet orifice 34 to pass through the interior of said fitting. The regulator, being once adjusted and'there being an increased demand made on the steam in the boiler, as soon as-there is a slight drop in pressure within the boiler the diaphra m 22 will be relieved of a small part of t epressure thereon and will be pressed up eol slightly by the spring 25 and by reason of be raised in unison, thus e'ecting larger port openings within both the steam casing and the oil casing, thereby permitting the passage tothe furnace burner of a larger amount of oil and the necessary steam to atomize it, which atomized oil will properly increase the furnace fire to meet the increased demand for steam. Should the boiler pressure increase above the desired degree to which the regulator is set, the

pressure of the steam upon the diaphragm will compress the spring 25 slightly, and the piston-valve 6 and cylinder 28 will be carried down slightly thereby decreasing the steam and oil port openings sufficiently to decrease the furnace fire to the proper amount to obtain the desired constant pressure of the steam in the boiler. By properly ma'- nipulating the hand-wheel 39 the tension of .the spring v25 may be set to balance the pressure of the steam upon the diaphragm within the steam casing to suit all cases of either light or heavy boiler pres ure. By ,manipu-l lating the hand-wheel 43upon the stem 27 the orts 30 of the hollow piston 29 may be a justed relative to the lower edge of the cylinder 28 to accommodate the regulator' to large or small furnace burners or fuel oils of light or heavy body 0r fuel oil sup` plies under light or heavy pressure. By manipulating the hand-wheel 17 the ports 24 of the cylinder 13 may be adjusted to a proper position corresponding to the upper edges of the passageways 45 in the pistonvalve 6 so that a suflicient amount of steam may pass to the furnace burner to properly atoinize the oil which is delivered 'to the burner through the ports 30 in the hollow piston 29. And because of the proper ormation and arrangement of the steam and oil ports, after the regulator is once adjusted and set the ratio of steam to oil remains substantially constant.

For the reason that in some places a very low steam pressure is used, and in others a high steam pressure is necessary, and because of t-he greatdifference in the amount of steam necessary to atomize a light or heavy grade of fuel oil, it has been found desirable t'o aord means of a second adjustment of the cylinder 13 relative to the piston-valve 6 in order to accommodate the device to these widely varying conditions. The means for the second adjustment may consist of the hand lever 15 which is fixed to :the threaded shank of the cylinder 13 whereby the latter may be turned and thereby adjusted angularly with respect to the piston-valve 6 and the. passageways 45 in said piston-valve. The operation of this second adjustment of the steam port opening may be better understood by `reference to Fig. 3. With the lever 15 in the position as shown in Fig. 3 the ports 24 of the cylinder 13 are entirely opposite the passageways 45 of the piston-valve 6 which position admits of a maximum port opening, but should less port opening be required to be exposed to the passageways 45 on the vertical movement of the valve 6, because ofthe use of a higher steam pressure or a lighter bodyfuel oil, the lever 15 is turned toward its dotted position, as shown in Fig. 3, thereby cutting down the width of 'the port opening 24 for the passage of the steam.

The bolt 3 is held from being thrown out of line, by an uneven pressure of the spring 25, by the sliding bearing which its upwardly reaching stem 9 has in the top portion of the cylinder 13. The `ball bearing on the lower end of the bolt 3 prevents the cylinder 28 from binding on the top portion of the hollow piston 29. i y

The steam packing 18 which surrounds the cylinder 13, below the gland 10, prevents steain from passing from the interior of the steam casing into its discharging channels. The steam packing 12 above the gland 10 prevents steam from passing from its discharging channels to the atmosphere through the threads of the pack nut 44; s aid pack nut 44 may be screwed down with a suitable wrench to maintain steam-tight joints below and above the gland 10.

While one form of constructlon 1n which the invention may be embodied has been particularly illustrated and described, many changes and modiications thereof will readily occur to those skilled in the art, wherefore the right is reserved to all such changes and modifications as do not depart from the spirit and scope of theinvention as defined in the appended claims.

We claim:

1. In a regulator, the combination of a cylinder having a recess therein, a pistonvalve arranged in the cylinder and provided with a longitudinal opening therethrough, a rod passing freely through said longitudinal opening and having the end portion thereof` iitted in said recess, said rod provided with an opening therethrough, a pin slidably and rotatively' arranged in said rod, and a pin arranged at right angles'to the iirst mentioned pin and dconnected with said piston-valve and passing freely through the opening in said rod.

2. In a regulator, the combination of a casing, a flexible diaphragm therein, a cylinder provided with a threaded shank, a piston-valve in the cylinder, said cylinder and piston valve provided with adjacently disposed passageways, means operatively connecting the piston-valve with the diaphragm, a yoke affixed on the casing, a handwheel provided with an internally threaded hub fittedon said shank and bearing rotatively in the yoke, and a hand lever aiiixed on said shank for angularly adjusting the cylinder at will, substantially as set forth.

3. In a regulator, the combination of a flexible diaphragm, a casing thereon, a spring to resist movement of the diaphragm, a cylinder arranged within said spring, means for connecting the cylinder with the diaphragm, a sleeve adapted to bear against the spring, a fitting threaded in the sleeve and extending through the casing, a hollow piston threaded in the fitting and extending into the cylinder and provided with openings adjacent to the cylinder., a rod passing through the fitting and connected with the hollow piston, and handles on the fitting and the rod.

4. In a regulator, the combination of a yflexible diaphragm, a casing thereon, a

spring in the casing, means including a fitting rotatably mounted on the casing and adapted to permit adjustment of the spring, a ,cylinder arranged within the spring, means. for exibly connecting the cylinder with the diaphragm, a hollow piston eX- tending into the cylinder and provided with openings adjacent tothe end of the cylinder, and means mounted on the iittingl and adapted to permit manual adjustment of the hollow piston at will.

5. The combination of a lexible diaphragm, casings for steam and oil disposed arranged in said casings, piston-valves extending into said cylinders, rods connected With said diaphragm, means flexibly connecting said piston-valves with said rods, means adapted topermit relative longitudinal adjustment of said piston-valves and cylinders, and means adapted to. permit relative angular adjustment of the pistonvalve and cylinder in the steam casing, substantially as and vfor the purposes set forth.

6. In a regulator, the combination of a flexible diaphragm, a casing thereon provided with an outlet orifice, a cylinder arranged in said casing and provided With ports therein, a piston-valve disposed in said cylinder and operatively connected `with said diaphragm, a packing gland surrounding said cylinder, said glandv provided with openings communicating with said ports and said outlet orifice, packing arranged at the ends of said gland, and a pack nut screwablyarranged in said casing and adapted to bea-r against said packing and gland, substantially as described.

In testimony whereof, We have signed our names to this specification in the presence of two subscribing Witnesses at Los Angeles county of Los Angeles, State of California, this 26th day of April A. D.

WILLIAM MILES MILLER. SWAN ALBERT SHIPP.

Witnesses:

HARRY A. BROOKS,-

A. H. LIDDERS. 

